631735280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{10111}}^1$

素因数の和:10206

約数の個数: 80

約数和(自身を含む): 1625038848

約数和(自身を除く): 993303568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1136, 1420, 1562, 2840, 3124, 3905, 5680, 6248, 7810, 10111, 12496, 15620, 20222, 31240, 40444, 50555, 62480, 80888, 101110, 111221, 161776, 202220, 222442, 404440, 444884, 556105, 717881, 808880, 889768, 1112210, 1435762, 1779536, 2224420, 2871524, 3589405, 4448840, 5743048, 7178810, 7896691, 8897680, 11486096, 14357620, 15793382, 28715240, 31586764, 39483455, 57430480, 63173528, 78966910, 126347056, 157933820, 315867640, 631735280]

約数ペア:

[(1, 631735280), (2, 315867640), (4, 157933820), (5, 126347056), (8, 78966910), (10, 63173528), (11, 57430480), (16, 39483455), (20, 31586764), (22, 28715240), (40, 15793382), (44, 14357620), (55, 11486096), (71, 8897680), (80, 7896691), (88, 7178810), (110, 5743048), (142, 4448840), (176, 3589405), (220, 2871524), (284, 2224420), (355, 1779536), (440, 1435762), (568, 1112210), (710, 889768), (781, 808880), (880, 717881), (1136, 556105), (1420, 444884), (1562, 404440), (2840, 222442), (3124, 202220), (3905, 161776), (5680, 111221), (6248, 101110), (7810, 80888), (10111, 62480), (12496, 50555), (15620, 40444), (20222, 31240)]